Breaking down compounds
June 1st 2008 Hanovia's medium pressure UV
technology has been chosen for
TOC (total organic carbon)*
reduction in boiler feedwater at the
Kaeng Khoi 2 power plant in
Saraburi,Thailand.TOC can cause
corrosion in the boiler systems and
although most organic compounds
found naturally in water can be
removed by physical processes like
ultrafiltration or by ion exchange,
some require additional steps.
In Hanovia's medium pressure
UV systems, UV lamps break down
TOCs and other low level organics
in two ways: firstly, by dissociating
their molecular bonds; and
secondly, by generating aggressive
hydroxyl radicals from water
molecules.The Hanovia UV system
at Kaeng Khoi 2 is integrated into a
demineralisation plant.TOC input
to the UV chambers is 183ppb and
output is 58ppb – a 68% reduction
and well below the required
minimum required concentration. More articles from Hanovia Limited: | 
